php 高级完美多文件上传类程序
<?php
$action = $_GET['action'];
require_once ('auc.main.class.inc.php');
$auc = new auc();
if ($action == 'uploadfile') {
$auc = new auc();
$result = $auc->upload("file");
if (is_array($result)) {
echo 'Something Went Wrong';
echo '<pre>';
var_dump($result);
echo '</pre>';
} else {
echo 'All OK';
}
} else {
?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>advanced Upload Class - Demo</title>
</head>
<body>
<form action="auc.demo.php?action=uploadfile" method="post" enctype="multipart/form-data">
<input name="file[]" type="file" /><br />
<input name="file[]" type="file" /><br />
<input name="upload" type="submit" value="Upload File" />
</form>
</body>
</html>
<?php
} ?>类文件
<?php
class auc {
//array used to store any errors that occur.
public $errors = array();
//the upload_dir being used by the script
public $upload_dir = '';
//default don't modify the file name to safe version
public $make_safe = false;
//Max File Size in Bytes, 1MB
public $max_file_size = 1048576;
//default don't overwrite files that already exsist
public $overwrite = false;
//don't check for file type by default but can check for allowed and denied files.
public $check_file_type = false;
//array of allowed mime types used when check_file_type is set to allowed
public $allowed_mime_types = array(
'image/jpeg',
'image/png',
'image/gif',
'image/tiff'
);
//array of denied mime types used when check_file_type is set to denied
public $denied_mime_types = array(
'application/x-php',
'text/html'
);
/**
* Check if the upload dir is valid, if it is not valid attempt to make the dir
* if dir is succesfully created chmod it to 0777.
* If any elments fail return false else set upload_dir and return true.
* @param string $dir
* @param boolean $mkdir
* @return true or false
*/
public function upload_dir($dir, $mkdir = false) {
$errors = & $this->errors;
$status = true;
if (!is_dir($dir)) {
if ($mkdir) {
if (!mkdir($dir)) {
$status = false;
} else {
if (!chmod($dir, 0777)) $status = false;
}
} else {
$status = false;
}
}
if ($status) {
$this->upload_dir = $dir;
return true;
} else {
$errors['general'][] = 'Upload Dir is Not Valid and/or a dir could not be created/chmod.';
return false;
}
}
/**
* check that the upload dir is valid and that it is writeable
*
* @param string $dir
* @return true or false
*/
public function check_dir($dir) {
if (!is_dir($dir) || !is_writable($dir)) return false;
return true;
}
/**
* make the uploaded file name safe
*
* @param string $file_name
* @return safe file name
*/
public function make_safe($file_name) {
return str_replace(' ', '_', $file_name);
}
/**
* Check the Attemted Uploads for errors etc if everything goes good move the file
* to the upload_dir.
* @param array $object
* @return unknown
*/
public function upload($object) {
$errors = & $this->errors;
if (empty($errors['general'])) {
//if no default upload_dir has been specified used the current dir.
if (empty($this->upload_dir)) $this->upload_dir = dirname(__FILE__) . '/';
if ($this->check_dir($this->upload_dir)) {
$files = $_FILES[$object];
$count = count($files['name']) - 1;
echo '<pre>';
var_dump($files);
echo '</pre>';
for ($current = 0; $current <= $count; $current++) {
$error = '';
try {
//check for $_FILES Errors
switch ($files['error'][$current]) {
case 0:
break;
case 1:
$error = $files['name'][$current] . ' exceeds the upload_max_filesize directive in php.ini';
break;
case 2:
$error = $files['name'][$current] . ' exceeds the MAX_FILE_SIZE directive that was specified in the HTML form';
break;
case 3:
$error = $files['name'][$current] . ' was only partially uploaded';
break;
case 4:
$error = 'No file was uploaded';
break;
case 6:
$error = 'Missing a temporary folder';
break;
case 7:
$error = 'Failed to write ' . $files['name'][$current] . ' to disk';
break;
case 8:
$error = $files['name'][$current] . ' stopped by extension';
break;
default:
$error = 'Unidentified Error, caused by ' . $files['name'][$current];
break;
}
if ($error) throw new TrigerErrorException($error, $files['name'][$current]);
//check that the file is not empty
if ($files['size'][$current] <= 0) throw new TrigerErrorException($files['name'][$current] . ' is empty', $files['name'][$current]);
//check that the file does not exceed the defined max_file_size
if ($this->max_file_size) {
if ($files['size'][$current] >= $this->max_file_size) throw new TrigerErrorException($files['name'][$current] . ' exceeds defined max_file_size', $files['name'][$current]);
}
if ($this->check_file_type == 'allowed' && !in_array($files['type'][$current], $this->allowed_mime_types)) {
throw new TrigerErrorException($files['name'][$current] . ' is not an allowed type', $files['name'][$current]);
} elseif ($this->check_file_type == 'denied' && in_array($files['type'][$current], $this->denied_mime_types)) {
throw new TrigerErrorException($files['name'][$current] . ' is a denied type', $files['name'][$current]);
}
//if make_safe is true call make safe function
if ($this->make_safe) $files['name'][$current] = $this->make_safe($files['name'][$current]);
//if overwrite is false and the file exists error
if (!$this->overwrite && file_exists($this->upload_dir . $files['name'][$current])) throw new TrigerErrorException($files['name'][$current] . ' already exsists', $files['name'][$current]);
//move the uploaded file, error if anything goes wrong.
if (!move_uploaded_file($files['tmp_name'][$current], $this->upload_dir . $files['name'][$current])) throw new TrigerErrorException($files['name'][$current] . ' could not be moved', $files['name'][$current]);
}
catch(TrigerErrorException $e) {
$errors[$files['name'][$current]][] = $e->Message();
}
}
if (empty($errors)) {
//return true if there where no errors
return true;
} else {
//return the errors array if there where any errros
return $errors;
}
} else {
//return false as dir is not valid
$errors['general'][] = "The Specified Dir is Not Valid or is Not Writeable";
return false;
}
}
}
}
/**
* Handle the Exceptions trigered by errors within upload code.
*
*/
class TrigerErrorException extends Exception {
protected $file = "";
public function __construct($message, $file = "", $code = 0) {
$this->file = $file;
parent::__construct($message, $code);
}
public function Message() {
return "{$this->message}";
}
}本文地址：http://www.phprm.com/code/26d3a752d89f643946aec5878e1e9c4d.html
转载随意，但请附上文章地址:-)